The McCormick 6684963A1 is a genuine OEM connector designed for a wide range of McCormick X-series tractors, including X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X5.20, X5.30, X5.40, X5.50, X5.085, X5.095, X5.105, X5.115, X6.420, X6.430, X6.440, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, and X8.680 models. This connector also ensures compatibility with various Landini and Valpadana tractor series, providing reliable electrical connections for essential machinery functions.